package com.xjun.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.servlet.Filter;
import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;

@Configuration
public class DruidConfig {
    @ConfigurationProperties(prefix = "spring.datasource")
    @Bean
    public DataSource druidDataSource() {
        return new DruidDataSource();
    }

    //后台监控 :web.xml,ServletRegistrationBean
    //因为SpringBoot内置了servlet容器,所以没有Web.xml ，代替方法：ServletRegistrationBean
    @Bean
    public ServletRegistrationBean statViewServlet() {
        ServletRegistrationBean<StatViewServlet> bean = new ServletRegistrationBean<>(new StatViewServlet(),"/druid/*");

        //后台登录，账号密码配置
        HashMap<String, String> initParameters = new HashMap<>();
        //增加配置
        initParameters.put("loginUsername", "admin");//登录Key 是固定的loginUsername
        initParameters.put("loginPassword", "123456");//登录密码 是固定的loginPassword

        //设置谁可以访问
        initParameters.put("allow", "");
        //禁止谁不能访问
//        initParameters.put("xjun","192.168.1.1");
        //设置初始化参数
        bean.setInitParameters(initParameters);


        return bean;
    }
    //filter
    @Bean
    public FilterRegistrationBean webStatFilter(){
        FilterRegistrationBean<Filter> bean = new FilterRegistrationBean<>();
        bean.setFilter(new WebStatFilter());
        //可以过滤哪些请求？
        HashMap<String, String> initParameters = new HashMap<>();
        initParameters.put("exclusions","*.js,*.css,/druid/*");
        bean.setInitParameters(initParameters);
        return bean;
    }
}
